Understanding Graded Coins
The Sheldon Scale
The Sheldon Coin Grading Scale is a 70-point coin grading scale used in the numismatic assessment of a coins quality. It is used by nearly all major coin grading companies, the main two being NGC and PCGS. The scale was invented by William Herbert Sheldon.
Coin Grading Guide
In its more than 200 years of producing coins, the United States Mint has created dozens of coin types across numerous denominations. Some of these denominations are now obsolete, the coins which represented them having long ago passed from circulation. Each, however, remains an object of great interest to collectors, yet useful information about the technical aspects of these coins and tips on selecting the optimum specimens may not easily be found in print.
From 1996 to 2002, NGC Research Director, David W. Lange, wrote a series of columns for The Numismatist, the monthly publication of the American Numismatic Association. Each entry featured a different type of United States coin, and Dave shared with readers his insights into the technical and aesthetic qualities that defined it, while also providing helpful tips to guide collectors in selecting examples which best represented that particular design. These columns have now been thoroughly updated and are presented here for the benefit of NGC and PCGS customers.
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